Last name Sigurbjörnsson (Sigurbjörnsson 
) , all around the world, is a rare cognomen. The last name Sigurbjörnsson is characteristic of Northern Europe, particularly Iceland, where it is quite a common surname, Sweden, where it is a rare surname, and Norway, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Iceland, Sweden, and Germany.
| VARIANT | COUNTRY |
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| Sigurbjörnsson | Norway, Sweden, Iceland, Germany |
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friðgeir einar sigurbjörnsson IS (b. 1896) |
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karl sigurbjörnsson Bishop of Iceland, IS (b. 1947) |
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| lárus sigurbjörnsson (b. 1903) |
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| bergur sigurbjörnsson Icelandic politician, IS (b. 1917) |
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| friðrik sigurbjörnsson badminton player, IS (b. 1920) |
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| jón sigurbjörnsson Icelandic actor and singer, IS (b. 1922) |
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| halldór sigurbjörnsson association football player (b. 1933) |
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| þorkell sigurbjörnsson composer from Iceland (1938-2013), IS (b. 1938) |
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eiður sigurbjörnsson Icelandic footballer, IS (b. 1990) |
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| börkur sigurbjörnsson Ph.D. Universiteit van Amsterdam 2006 |
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| alexander ingvar sigurbjörnsson benet Spanish rower, ES (b. 1988) |
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| snorri sigurbjörnsson Icelandic ice hockey player (1991-), IS (b. 1991) |
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Aron, Reynir, Rúnar, Gunnar, Jóhann, Tómas, Ólafur, Stefán, Tryggvi, Rafnar, Friðrik, Matthías, Sigurður, Brynjólfur, Kolbeinn, Kristinn, Kristján, Guðmundur, Þorvarður, Ingólfur, Þorbjörn, Björn, Börkur, Karl, Rafn, Jón, Siggi, Arnar, Peter, Páll, Torfi, Böðvar, Einar, Hjálmar, Oskar, Ívar, Óskar, Magnús, Sveinn, Svanur, Birgir, Helgi, and Sigurbjörn